CSP id  is a virtual smartcard that maintains a central repository for X.509 certificates and private keys. It provides a secure environment for cryptographic operations that nearly all security-enabled applications can access via Java, PKCS#11, or Microsoft CAPI. It is available for, and compatible between, all desktop versions of Windows, Linux/x86, and Solaris/SPARC. CSP id provides a portable, operating system independent credential store that may be shared by all security-enabled applications simplifies enterprise-wide credential management;users need not replicate keys among applications, and may effortlessly migrate credentials between workstations provides administrative controls over user credentials;allows PKI enrollment, key rollover, credential backup, and other key management tasks to be automated in a user-transparent manner provides superior protection for private keys and overcomes password change/reset issues with Internet Explorer and Mozilla reduces help desk costs and PKI training requirements DAS support allows CSP id  to provide to all applications (including Outlook and Thunderbird S/MIME) high-assurance "role-based" signing and decryption operations that rely on remote private keys, possibly stored on an HSM.